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Round|Natural|GIA

3.12ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7521700205

Certificate GIA 7521700205

Diamond specifications and retailer prices

From HK$185,762 HKD
CA$32,885 CAD
As of October 30, 2026
Save HK$119,427 HKD (39%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$305,189 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 3.12ct natural round diamond

This 3.12ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7521700205. Listed at 16 retailers as of October 30, 2026, with prices from HK$185,762 to HK$305,189, a HK$119,427 spread on the same certified stone. MOH London lists it at HK$305,189. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.12
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7521700205
Dimensions9.31 × 9.39 × 5.83 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Feather, Crystal, Knot, Cloud, Needle, Natural
Top View
9.31 mm9.39 mm3.12 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7521700205
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$305,189 HKD|Low: HK$185,762 HKD|High: HK$314,067 HKD|Avg: HK$222,852 HKD|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 8HK$185,762 HKD
Retailer 3HK$186,920 HKD
Retailer 7HK$197,438 HKD
Retailer 9HK$198,583 HKD
Retailer 4HK$203,502 HKD
Retailer 10HK$206,522 HKD
Retailer 5HK$209,872 HKD
Retailer 6HK$209,872 HKD
Retailer 12HK$216,855 HKD
Retailer 2HK$230,285 HKD
Retailer 11HK$230,358 HKD
Retailer 13HK$232,421 HKD
Retailer 14HK$276,836 HKD
MOH LondonHK$305,189 HKD

32 data points across 14 retailers

16 retailersHK$185,762 HKD to HK$305,189 HKD

B+
Cheapest Retailer
-
HK$185,762 HKD
CA$32,885 CAD
B+
Retailer 2
-
HK$186,920 HKD
$23,825 USD
View
B+
Retailer 3
-
HK$197,438 HKD
£19,815 GBP
View
B+
Retailer 4
-
HK$198,583 HKD
$25,311 USD
View
B+
Retailer 5
-
HK$203,502 HKD
$25,938 USD
View
B+
Retailer 6
-
HK$206,522 HKD
$26,323 USD
View
Retailer 7
-
HK$206,977 HKD
$26,381 USD
View
Price last confirmed 36 days ago
B+
Retailer 8
-
HK$209,872 HKD
$26,750 USD
View
B+
Retailer 9
-
HK$209,872 HKD
$26,750 USD
View
B+
Retailer 10
-
HK$216,855 HKD
$27,640 USD
View
B+
Retailer 11
-
HK$218,630 HKD
CA$38,703 CAD
View
B
Retailer 12
-
HK$230,285 HKD
€27,954 EUR
View
B
Retailer 13
-
HK$230,358 HKD
$29,361 USD
View
B
Retailer 14
-
HK$232,421 HKD
$29,624 USD
View
B
Retailer 15
-
HK$276,836 HKD
$35,285 USD
View
Most Expensive
B
MOH London
CD8E8B023 · Nov 1
HK$305,189 HKD
£30,629 GBP
View
15 more retailers have this diamond
Prices start from HK$185,762 HKDSave up to HK$119,427 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
3.12ct Round
HK$185,762 HKD